E. Hammer’s scientific contributions

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Publications (1)

Lehrbuch der ebenen und sphärischen Trigonometrie. Zum Gebrauch beim Schulunterricht und in Schulen, besonders als Vorbereitung auf Geodäsie und sphärische Astronomie bearbeitet. 2. Aufl
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1 Citation

E. Hammer

Citations (1)

... Unfortunately, the evidence for both is not clear. Regarding our first point, after 1808, equations (1) and (2) appear in various German articles and textbooks [14,16,19,21,36,37,46]. Why and when these two equations were named after Mollweide is difficult to understand. ...

Reference:

The Story of Mollweide and Some Trigonometric Identities
Lehrbuch der ebenen und sphärischen Trigonometrie. Zum Gebrauch beim Schulunterricht und in Schulen, besonders als Vorbereitung auf Geodäsie und sphärische Astronomie bearbeitet. 2. Aufl
  • Citing Article
E. Hammer